A turning jig for a metal working milling machine

Abstract

The utility model discloses a kind of turning jigs of metal processing milling machine, including jig seat, axle disc seat and chuck.First drive motor and second drive motor are fixedly installed in jig seat, inside rotation is installed with belt shaft rod, first drive motor is driven axle disc seat along rotation axis deflection by belt shaft rod and belt transmission.The surface of axle disc seat is fixed with lug, chuck is rotationally installed in lug, chuck bottom surface is coaxially fixed with gear disc, gear disc is engaged with transmission shaft through bevel gear shaft, transmission shaft other end is engaged with second drive motor output end, to rotate around its own axis to drive chuck.Axle disc seat is provided with sleeve seat and is engaged with the encoding component in jig seat, for real-time monitoring deflection angle, bearing assembly is provided in lug and supports gear disc rotation.The jig can independently control workpiece multi-angle deflection and autorotation, realize the high-precision multi-surface processing of complex shape workpiece, reduce repeated clamping, improve processing efficiency and positioning accuracy.

Description

Technical Field

[0001] This utility model relates to the field of machining fixture technology, specifically a steering fixture for a metal milling machine. Background Technology

[0002] Metal milling machines, as important processing equipment in the mechanical manufacturing field, are widely used in milling, drilling, and multi-face machining of parts. Existing milling machine fixtures are typically used to clamp and position workpieces during machining to ensure machining accuracy and stability. However, in current technology, fixture structures are mostly fixed or single-rotation designs, meaning the fixture can only rotate around a single axis and lacks multi-angle adjustment capabilities. When machining complex shapes or workpieces requiring multi-face machining, this structure often requires multiple clamping and reclamping operations, increasing machining time and potentially reducing machining accuracy due to repeated positioning errors.

[0003] While some existing adjustable fixtures incorporate deflection mechanisms to alter workpiece posture within a certain range, most fail to achieve independent control of deflection and workpiece rotation. During machining, when adjusting the workpiece's spatial position while simultaneously performing rotational machining, additional transmission devices or multiple drive motors are often required, resulting in complex structures, long transmission chains, and insufficient stability. Furthermore, existing fixtures generally lack real-time angle monitoring for rotational control, forcing operators to rely on experience to judge rotation angles, making it difficult to guarantee precise angle control during machining.

[0004] Therefore, how to simultaneously achieve multi-angle deflection and high-precision rotation of the workpiece in the fixture structure, while ensuring structural compactness and providing stable rotational support and real-time angle monitoring, has become a problem that urgently needs to be solved by those skilled in the art. Utility Model Content

[0005] This utility model aims to solve one of the technical problems existing in the prior art or related technologies.

[0006] Therefore, the technical solution adopted by this utility model is as follows: a steering fixture for a metal milling machine, including a fixture base, a shaft plate base, and a chuck. By setting a first drive motor and a second drive motor in the fixture base, and cooperating with components such as a belt shaft, transmission shaft, bevel gear shaft, and gear plate, the workpiece can achieve multi-angle deflection and rotation in space. Combined with the monitoring function of the bearing assembly of the bearing lug and the coding assembly, the processing efficiency and accuracy are effectively improved.

[0007] In a preferred embodiment, a first drive motor and a second drive motor are fixedly mounted on the inner side of the fixture base. A belt shaft is rotatably mounted on the inner side of the fixture base, and one end of the belt shaft engages with the output end of the first drive motor for transmission. The shaft disc seat is rotatably mounted on the surface of the fixture base, and the surface of the shaft disc seat is connected to the belt shaft via a belt drive. With the above structure, the first drive motor can drive the shaft disc seat to deflect along its rotation axis, realizing the rotational adjustment of the chuck in space. Specifically, multi-faceted machining can be completed without multiple clamping operations, significantly improving machining efficiency and positioning accuracy.

[0008] In another preferred embodiment, a lug is fixedly mounted on the surface of the shaft disc seat, the chuck is rotatably mounted on the lug surface, and a gear plate is fixedly mounted on the bottom surface of the chuck. A coaxially arranged drive shaft is provided on the surface of the shaft disc seat, and a bevel gear shaft is rotatably mounted on the inner side of the lug. Both ends of the bevel gear shaft mesh with the surface of the gear plate and one end of the drive shaft, respectively, and the other end of the drive shaft meshes with the output end of the second drive motor. With this structure, the second drive motor can drive the chuck to rotate around its own central axis, realizing the rotational machining of the workpiece. Specifically, it can be combined with a deflection function to achieve complex machining paths, improving machining flexibility and the uniformity of the machined surface.

[0009] In a preferred embodiment, one end of the belt shaft is connected to the output shaft of the first drive motor, and the other end engages with the shaft disc seat via a pulley. Specifically, this structure can effectively shorten the transmission chain length, reduce power loss, and improve the response speed and stability of the deflection action.

[0010] In another preferred embodiment, the lug is an annular lug structure with a bearing assembly on its inner ring for supporting and limiting the rotation of the gear disk. Specifically, this structure can maintain rotational stability during workpiece rotation, reduce vibration, and improve machining accuracy.

[0011] In a preferred embodiment, a sleeve located on the outer periphery of the drive shaft and coaxially arranged with the shaft disk seat is fixedly mounted on the surface of the shaft disk seat, and an encoding component that meshes with the surface of the sleeve is fixedly mounted on the inner side of the fixture seat. Specifically, this structure can monitor the deflection angle of the shaft disk seat in real time and transmit the data to the control system to achieve high-precision attitude control.

[0012] In another preferred embodiment, the gear disk and the chuck are coaxially and fixedly connected, and the gear ring of the gear disk meshes with the drive gear on the transmission shaft. Specifically, this structure ensures the stable transmission of the rotational driving force and avoids a decrease in rotational accuracy due to backlash or slippage.

[0013] In a preferred embodiment, the fixture base has an internal mounting cavity for accommodating and securing the first drive motor, the second drive motor, and the transmission assembly. The outer wall of the mounting cavity has a cable interface for electrical connection. Specifically, this structure not only facilitates the installation and maintenance of the equipment but also improves the dustproof, chipproof, and safety protection performance of the internal components.

[0014] In summary, this utility model achieves flexible switching between multi-angle deflection and rotation machining of workpieces through the independent driving cooperation of the first drive motor and the second drive motor. Combined with a high-precision support and real-time angle monitoring structure, it effectively improves the efficiency, accuracy and applicability of machining, and is particularly suitable for machining scenarios involving complex shapes, multi-face machining and high-precision clamping.

[0015] The beneficial effects achieved by this utility model are as follows:

[0016] 1. In this utility model, the first drive motor drives the shaft plate seat to deflect and adjust, so that the chuck and the workpiece can be positioned at multiple angles in space, which improves the flexibility and adaptability of processing. It is especially suitable for multi-face processing of complex-shaped workpieces, and reduces the time and error of repeated clamping.

[0017] 2. In this utility model, the chuck is driven to rotate by a second drive motor via a transmission shaft, a bevel gear shaft, and a gear disc. Combined with the bearing assembly and coding monitoring structure inside the bearing lug, not only is the stability and accuracy of the rotation guaranteed, but also the rotation angle can be monitored in real time, thereby improving processing quality and production efficiency. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the overall structure of one embodiment of the present utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the fixture seat according to an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram of the shaft disc seat and the transmission structure of the first drive motor according to one embodiment of the present invention;

[0021] Figure 4 This is a schematic diagram of the second drive motor and gear transmission structure according to an embodiment of the present invention;

[0022] Figure 5 This is a schematic diagram of the cross-sectional structure of the shaft disk seat according to an embodiment of the present invention.

[0023] Figure label:

[0024] 100. Fixture base; 110. First drive motor; 120. Second drive motor; 130. Belt shaft;

[0025] 200. Shaft plate seat; 210. Bearing lug; 220. Bevel gear shaft; 230. Drive shaft;

[0026] 300. Chuck; 310. Gear disc. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings. It should be noted that, unless otherwise specified, the embodiments and features of the present utility model can be combined with each other.

[0028] It should be understood that these descriptions are merely exemplary and not intended to limit the scope of this invention.

[0029] The following describes, with reference to the accompanying drawings, some embodiments of the present invention, a steering fixture for a metal milling machine.

[0030] Combination Figures 1-5 As shown, the present invention provides a steering fixture for a metal milling machine, comprising a fixture seat 100, a spindle seat 200, and a chuck 300.

[0031] A first drive motor 110 and a second drive motor 120 are fixedly mounted on the inner side of the fixture base 100. The first drive motor 110 and the second drive motor 120 are used to drive the deflection motion of the fixture and the rotation motion of the workpiece, respectively. A belt shaft 130 is rotatably mounted on the inner side of the fixture base 100. One end of the belt shaft 130 is engaged with the output end of the first drive motor 110 for transmission. A shaft disc seat 200 is rotatably mounted on the surface of the fixture base 100, and the surface of the shaft disc seat 200 is connected to the belt shaft 130 through belt transmission, so that the first drive motor 110 can drive the shaft disc seat 200 to deflect along its rotation axis through the belt shaft 130.

[0032] A lug 210 is fixedly mounted on the surface of the shaft disc seat 200. The lug 210 is an annular lug structure with a bearing assembly in its inner ring for supporting and limiting the rotation of the chuck 300. The chuck 300 is rotatably mounted on the surface of the lug 210, and a gear plate 310 is fixedly mounted on the bottom surface of the chuck 300. The gear plate 310 is coaxially and fixedly connected to the chuck 300. A drive shaft 230 is coaxially arranged on the surface of the shaft disc seat 200. A bevel gear shaft 220 is rotatably mounted on the inner side of the lug 210. Both ends of the bevel gear shaft 220 mesh with the surface of the gear plate 310 and the drive shaft 230, respectively. The other end of the drive shaft 230 meshes with the output end of the second drive motor 120, thereby realizing the self-rotation drive of the chuck 300 by the second drive motor 120.

[0033] In a preferred example, the first drive motor 110 drives the belt shaft 130 to rotate, and the belt drive structure causes the shaft plate seat 200 to deflect around its own rotation axis, thereby changing the angle of the chuck 300 and the clamped workpiece in space, and realizing multi-angle positioning adjustment.

[0034] In another preferred example, after the second drive motor 120 starts, it drives the transmission shaft 230 to rotate through the output shaft. The transmission shaft 230 drives the gear disk 310 to rotate through the meshing bevel gear shaft 220. Since the gear disk 310 is coaxially fixed with the chuck 300, the chuck 300 can achieve stable rotation around its own central axis, thereby enabling continuous processing of the workpiece.

[0035] One end of the belt shaft 130 is directly connected to the output shaft of the first drive motor 110, and the other end is driven by the belt pulley meshing with the shaft plate seat 200. This structure can effectively reduce the length of the transmission chain and improve the response speed and stability of the deflection motion.

[0036] In one embodiment, the inner ring bearing assembly of the lug 210 can provide stable support force during the rotation of the chuck 300 and prevent radial and axial displacement, thus ensuring rotational accuracy.

[0037] In another embodiment, a sleeve arranged coaxially with the shaft disk seat 200 is fixedly mounted on the surface of the shaft disk seat 200, and an encoding component that meshes with the surface of the sleeve is fixedly mounted on the inner side of the fixture seat 100. The encoding component is used to monitor the deflection angle of the shaft disk seat 200 in real time and feed the angle data back to the control system, thereby facilitating the operator to accurately control the posture of the workpiece.

[0038] The gear disk 310 is coaxially and fixedly connected to the chuck 300. The gear ring of the gear disk 310 meshes with the drive gear on the transmission shaft 230, which can ensure the reliability of power transmission and the synchronicity of rotation.

[0039] In a preferred embodiment, the fixture base 100 has an internal mounting cavity for accommodating and fixing the first drive motor 110, the second drive motor 120, and the transmission components. The outer wall of the mounting cavity has a cable interface for easy electrical connection to an external power supply and control system, while ensuring the sealing and dustproof performance of the internal transmission mechanism.

[0040] In summary, this utility model, through the cooperation of the first drive motor 110 and the second drive motor 120, enables the chuck 300 to achieve stable control in both multi-angle deflection and rotation machining modes, which not only improves machining efficiency but also significantly enhances machining accuracy and applicability.

[0041] Working principle and usage process of this utility model:

[0042] In use, the workpiece is first clamped in the clamping jaws of the chuck 300 and stably fixed by the mechanical locking mechanism of the chuck. After the first drive motor 110 is powered on, its output shaft drives the belt shaft 130 to rotate. The belt shaft 130 drives the shaft plate seat 200 to deflect around its rotation axis through the belt transmission mechanism, thereby realizing the overall rotational adjustment of the chuck 300 and the clamped workpiece in space.

[0043] When the workpiece needs to be rotated for machining, the second drive motor 120 is powered on and started. Its output shaft drives the transmission shaft 230 to rotate through meshing transmission. The transmission shaft 230 drives the gear disk 310 to rotate through the bevel gear shaft 220 that meshes with it. The gear disk 310 serves as a coaxial fixed component of the chuck 300, enabling the chuck 300 to rotate stably around its own central axis, thereby driving the workpiece to perform milling, drilling and other machining operations.

[0044] Throughout the machining process, the bearing assembly inside the lug 210 provides support and limits for the gear disc 310, ensuring rotational accuracy and stability. Simultaneously, the surface sleeve of the shaft disc seat 200 and the coding assembly within the fixture seat 100 work together to achieve real-time monitoring and feedback of the shaft disc seat 200's deflection angle, facilitating precise adjustments by the operator according to machining requirements.

[0045] In use, the operator adjusts the spatial position of the workpiece using the first drive motor 110 according to the workpiece shape and processing path, and then controls the rotation speed and direction of the workpiece using the second drive motor 120. After processing is completed, the motor is stopped, the chuck 300 is released, and the workpiece can be safely removed, achieving closed-loop control and efficient operation of the processing flow.

[0046] In the description of this specification, the terms "one embodiment," "some embodiments," "specific embodiment," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0047] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A steering fixture for a metal milling machine, characterized in that, It includes a jig base (100), a shaft plate base (200), and a chuck (300); The jig seat (100) is fixedly mounted with a first drive motor (110) and a second drive motor (120) on its inner side. A belt shaft (130) is rotatably mounted on the inner side of the jig seat (100), and one end of the belt shaft (130) is engaged with the output end of the first drive motor (110) for transmission. The shaft disc seat (200) is rotatably mounted on the surface of the jig seat (100), and the surface of the shaft disc seat (200) and the belt shaft (130) are driven by a belt. The bearing plate seat (200) is fixedly mounted with a lug (210), the chuck (300) is rotatably mounted on the surface of the lug (210), and a gear plate (310) is fixedly mounted on the bottom surface of the chuck (300). The bearing plate seat (200) is provided with a coaxially arranged transmission shaft (230). A bevel gear shaft (220) is rotatably mounted on the inner side of the lug (210). The two ends of the bevel gear shaft (220) are respectively engaged with the surface of the gear plate (310) and one end of the transmission shaft (230) for transmission. The other end of the transmission shaft (230) is engaged with the output end of the second drive motor (120) for transmission.

2. The steering fixture for a metal milling machine according to claim 1, characterized in that, The first drive motor (110) is used to drive the shaft disk seat (200) to deflect along its rotation axis so as to realize the rotation of the chuck (300) in space.

3. The steering fixture for a metal milling machine according to claim 1, characterized in that, The second drive motor (120) is used to drive the chuck (300) to rotate around its own central axis through the transmission shaft (230) and the gear plate (310) to realize the self-rotation processing of the clamped workpiece.

4. A steering fixture for a metal milling machine according to claim 1, characterized in that, One end of the belt shaft (130) is connected to the output shaft of the first drive motor (110), and the other end is engaged with the shaft plate seat (200) through a pulley.

5. A steering fixture for a metal milling machine according to claim 1, characterized in that, The lug (210) is an annular lug structure, and its inner ring is provided with a bearing assembly for supporting and limiting the rotation of the gear disc (310).

6. A steering fixture for a metal milling machine according to claim 1, characterized in that, A sleeve is fixedly installed on the surface of the shaft disc seat (200) on the outer periphery of the transmission shaft (230) and coaxially arranged with the shaft disc seat (200). An encoding component that meshes with the surface of the sleeve is fixedly installed on the inner side of the fixture seat (100) for real-time monitoring of the deflection angle of the shaft disc seat (200).

7. A steering fixture for a metal milling machine according to claim 1, characterized in that, The gear disk (310) and the chuck (300) are coaxially fixedly connected, and the gear ring of the gear disk (310) meshes with the drive gear on the transmission shaft (230).

8. A steering fixture for a metal milling machine according to claim 1, characterized in that, The fixture base (100) has an internal mounting cavity for accommodating and fixing the first drive motor (110), the second drive motor (120), and the transmission components. The outer wall of the mounting cavity is provided with a cable interface for electrical connection.

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